RESUMO
AIM To study the chemical constituents from Polygonum hydropiper L..METHODS The petroleum ether,ethyl acetate and n-butanol fractions of 95％ ethanol extract from P.hydropiper were isolated and purified by silica,Sephadex LH-20 and recrystallization,then the structures of obtained compounds were identified by spectral data.RESULTS Thirteen compounds were isolated and identified as β-sitosterol (1),aniba dimer A (2),succinic acid (3),quercetin (4),gallic acid (5),daucosterol (6),quercetin-3-O-β-D-glucoside (7),kaempferol-3-O-β-D-glucoside (8),quercetin-3-O-β-galactoside (9),kaempferol-3-O-β-galactoside (10),stigmast-4-ene-3β,6a-diol (11),fumaric acid (12),ellagic acid (13).CONCLUSION Compounds 11 and 12 are isolated from genus Polygonum for the first time,compounds 2,8,10 and 13 are first obtained from this plant.
RESUMO
<p><b>OBJECTIVE</b>To study the effect of Anthocyanin (Ay) on Cadmium-Induced Mouse testis Damage.</p><p><b>METHODS</b>Mouse testis damage model were constructed and testis malonaldehyde (MDA) and protein carbonxyl content (PCO), as well as catalase (CAT) and superoxide dismutase (SOD) were determined.</p><p><b>RESULTS</b>The intoxication of cadmium can cause the increase of MDA and PCO content in mouse testis (P < 0.05), however, the activities of SOD and CAT were altered (P < 0.01).</p><p><b>CONCLUSION</b>Ay have the strong potent to scavenge free radicals, owing to its special chemical structures, and act as a protector to inhibit the oxidative stress induced by cadmium.</p>